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Related papers: The Field White Dwarf Mass Distribution

200 papers

The Gaia mission will provide precise astrometry for an unprecedented number of white dwarfs (WDs), encoding information on stellar evolution, Type Ia supernovae progenitor scenarios, and the star formation and dynamical history of the…

Solar and Stellar Astrophysics · Physics 2019-11-04 Axel Widmark , Daniel J. Mortlock , Hiranya V. Peiris

We present a Monte Carlo population synthesis study of white dwarf-main sequence (WD+MS) binaries in the Galactic disk aimed at reproducing the ensemble properties of the entire population observed by the Sloan Digital Sky Survey (SDSS)…

Solar and Stellar Astrophysics · Physics 2017-07-19 R. Cojocaru , A. Rebassa-Mansergas , S. Torres , E. Garcia-Berro

The measured star-formation rates (SFRs) of galaxies comprise an important constraint on galaxy evolution and also on their cosmological boundary conditions. Any available tracer of the SFR depends on the shape of the mass-distribution of…

Astrophysics of Galaxies · Physics 2021-12-22 Pavel Kroupa , Tereza Jerabkova

We present follow-up spectroscopy of 711 white dwarfs within 100 pc, and present a detailed model atmosphere analysis of the 100 pc white dwarf sample in the SDSS footprint. Our spectroscopic follow-up is complete for 83% of the white…

Solar and Stellar Astrophysics · Physics 2020-08-05 Mukremin Kilic , P. Bergeron , Alekzander Kosakowski , Warren R. Brown , Marcel A. Agueros , Simon Blouin

We investigate the sample of 1175 new nonmagnetic DA white dwarfs with the effective temperatures T_eff > 12000 K, which were extracted from the Data Release 1 of the Sloan Digital Sky Survey. We determined masses, radii, and bolometric…

Astrophysics · Physics 2009-11-10 J. Madej , M. Nalezyty , L. G. Althaus

The initial-final mass relation (IFMR) links a star's birth mass to the mass of its white dwarf (WD) remnant, providing key constraints on stellar evolution. Open clusters offer the most straightforward way to empirically determine the…

Motivated by recent measurements which suggest that roughly half the mass of the galactic halo may be in the form of white dwarfs, we study the implications of such a halo. We first use current limits on the infrared background light and…

Astrophysics · Physics 2009-10-28 Fred C. Adams , Greg Laughlin

The main goal of this work was to measure the masses and radii of white dwarfs that belong to widely separated, common proper motion binaries with non-degenerate companions. These can be assessed, independently from theoretical mass-radius…

We have investigated the relationship between the kinematics and mass of young (<3x10^8 years) white dwarfs using proper motions. Our sample is taken from the colour selected catalogues of SDSS (Eisenstein et al. 2006) and the Palomar-Green…

Astrophysics of Galaxies · Physics 2015-06-05 Christopher Wegg , E. Sterl Phinney

We present the initial-final mass relation (IFMR) based on the self-consistent analysis of Sirius B and 79 white dwarfs from 13 star clusters. We have also acquired additional signal on eight white dwarfs previously analyzed in the NGC 2099…

Solar and Stellar Astrophysics · Physics 2018-10-17 Jeffrey D. Cummings , Jason S. Kalirai , P. -E. Tremblay , Enrico Ramirez-Ruiz , Jieun Choi

We examine the statistics of main-sequence / main-sequence, main-sequence / white-dwarf and white-dwarf / white-dwarf wide binaries at 10^2.5-10^4 AU separations in Gaia data. For binaries containing a white dwarf, we find a complex…

Solar and Stellar Astrophysics · Physics 2025-09-09 Hsiang-Chih Hwang , Nadia Zakamska

We discuss the feasibility of using astrophysical observations of white dwarfs as probes of fundamental physics. We quantify the effects of varying fundamental couplings on the white dwarf mass-radius relation in a broad class of…

Cosmology and Nongalactic Astrophysics · Physics 2017-10-17 D. M. N. Magano , J. M. A. Vilas Boas , C. J. A. P. Martins

The white dwarf mass distribution has been studied primarily at two extremes: objects that presumably evolved as single stars and members of close binaries that likely underwent substantial interaction. This work considers the intermediate…

Solar and Stellar Astrophysics · Physics 2025-01-17 Sahar Shahaf

Measuring the masses of companions to single-line spectroscopic binary stars is (in general) not possible because of the unknown orbital plane inclination. Even when the mass of the visible star can be measured, only a lower limit can be…

Solar and Stellar Astrophysics · Physics 2015-06-23 Jeff J. Andrews , Adrian M. Price-Whelan , Marcel A. Agüeros

We use data from Gaia DR2 to constrain the initial-final mass relation (IFMR) for field stars with initial masses $0.9 \lesssim m_{\rm in}/M_{\odot} \lesssim 8$. Precise parallaxes have revealed unprecedented substructure in the white dwarf…

Solar and Stellar Astrophysics · Physics 2018-07-04 Kareem El-Badry , Hans-Walter Rix , Daniel R. Weisz

The third data release of Gaia introduced a large catalog of astrometric binaries, out of which about 3,200 are likely main-sequence stars with a white-dwarf (WD) companion. These binaries are typically found with orbital separations of ~1…

Solar and Stellar Astrophysics · Physics 2024-07-18 Na'ama Hallakoun , Sahar Shahaf , Tsevi Mazeh , Silvia Toonen , Sagi Ben-Ami

Spectrophotometric observations at high signal-to-noise ratio were obtained of a complete sample of 347 DA white dwarfs from the Palomar Green (PG) Survey. Fits of observed Balmer lines to synthetic spectra calculated from pure-hydrogen…

Astrophysics · Physics 2009-09-17 J. Liebert , P. Bergeron , J. B Holberg

Astrometry from the Gaia mission has revealed a large population of white dwarf (WD) + main sequence (MS) binaries with periods of $100 - 1000\,$d. These systems have separations intermediate to predictions from standard binary evolution…

Solar and Stellar Astrophysics · Physics 2025-11-14 Natsuko Yamaguchi , Kareem El-Badry , Sahar Shahaf

We examine the applicability of the initial-to-final mass relation (IFMR) for white dwarfs (WDs) in intermediate-separation binary systems (approximately 1 AU), using astrometric binaries identified in open clusters from Gaia DR3. A careful…

Solar and Stellar Astrophysics · Physics 2025-01-30 Oren Ironi , Sagi Ben-Ami , Na'ama Hallakoun , Sahar Shahaf

Modern large-scale surveys have allowed the identification of large numbers of white dwarfs. However, these surveys are subject to complicated target selection algorithms, which make it almost impossible to quantify to what extent the…

Solar and Stellar Astrophysics · Physics 2015-06-24 A. Rebassa-Mansergas , X. -W. Liu , R. Cojocaru , H. -B. Yuan , S. Torres , E. Garcia-Berro , M. -X. Xiang , Y. Huang , D. Koester , Y. Hou , G. Li , Y. Zhang